Question

An object is placed at infinity in front of the convex mirror of radius of curvature 40 cm. How far is the image behind the mirror?

Answer 1

Explanation:

In Convex mirror

We are Given

$u= \infty$

When u is at Infinity The Image is Formed at virtual Focus.

Here R=40 cm

$f= \frac{r}{2}$

THUS f=v=20 cm